Changing the width of a column . . .

[pts123]

OK . . . did a little looking at the source code on the main page and then I found another website that had the width the way I want mine. Here is what I believe to be the pertinent code and how I want to set it.

<tr align="center">
<td class="thead" width="5%">&nbsp;</td>
<td class="thead" width="60%" align="left">Forum</td>
<td class="thead" width="25%">Last Post</td>
<td class="thead" width="5%">Threads</td>
<td class="thead" width="5%">Posts</td>

If you notice the width percentage added to each section. OK, next below is my site the way it is now, no percentages. So if I add that it should force the change, but I can't find the location of this code? I searched on template search and nothing showed up? As you see the previous template ended and no template starts, just <!-- main --> Where is that??

<!-- END TEMPLATE: navbar -->

<!-- main -->
<tr align="center">
<td class="thead">&nbsp;</td>
<td class="thead" width="100%" align="left">Forum</td>
<td class="thead">Last Post</td>
<td class="thead">Threads</td>
<td class="thead">Posts</td>